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Excess Sour Exhaust Smell

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    #1

    Excess Sour Exhaust Smell

    Sup guys,

    I've been getting this sour smell of the exhaust when after a drive or when it's fully warmed up.

    I got new plugs , wires , PCV valve , cleaned EGR , cleaned IACV , new ignition coil , new distributor , new air filter and new oxygen sensor. My gas mileage is bad , approx 14-18MPG depending on how I drive.

    Is this a sign of a bad catalytic converter? or is it normal? timing?

    TIA.
    Last edited by ExplodingCake; 11-11-2008, 07:48 PM.

    1993 Honda Accord LX 2004-2009
    1996 Honda Civic LX 2009-2012
    2012 Kia Optima LX 2012-2013
    2010 Honda Accord EX-L V6 2013-2018
    2007 Honda Fit Sport 2017-2017
    2018 Honda Accord EX-L 2.0T 2018-20XX





    Tags: None
    #2
    Sounds like cat.

    Unless its kinda sweet and there is whitesmoke, it could be headgasket
    wat?

    Comment

      #3
      Originally posted by C91BLX7 View Post
      Sounds like cat.

      Unless its kinda sweet and there is whitesmoke, it could be headgasket
      No smoke.

      1993 Honda Accord LX 2004-2009
      1996 Honda Civic LX 2009-2012
      2012 Kia Optima LX 2012-2013
      2010 Honda Accord EX-L V6 2013-2018
      2007 Honda Fit Sport 2017-2017
      2018 Honda Accord EX-L 2.0T 2018-20XX





      Comment

        #4
        Can you pull off your cat and look through it? Should be a nice honeycomb, and you should be able to see light through it. They can clog and melt. Often the car will still run pretty good, take my CRX, I had no idea the cat had melted, but the heat it gave off was so great it cooked the undercoating on the bottom of the car.

        AS long as the bolts haven't seized it should be easy to pull it off and check.

        on the stairs, she grabs my arm, says whats up,
        where you been, is something wrong?
        i try to just smile, and say everything’s fine.

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